6 Electrical Connection
SMA America, LLC
58
SI4548_6048-US-TB_en-13
Technical description
Generator Start
The Sunny Island can control generators. The Sunny Island directly supports generators that can be
started/stopped using a single contact.
6.4.5 BatVtgOut Voltage Supply
The battery voltage is conducted to the outside at these terminals. The battery voltage is fused at both
poles by PTC resistors (max. 0.75 A). Depending on the internal temperature of the Sunny Island, the
tripping threshold is at over 0.75 A.
This connection can be used, for example, to supply a DC contactor for load shedding.
Connecting the BatVtgOut Voltage Supply
1. Pierce a hole at a suitable location in the cable support sleeve using a sharp object.
2. Starting from the outside, lead the insulated conductors with bootlace ferrules through the hole
in the Sunny Island.
3. Connect the cables to the "BatVtgOut" connection of the 4-pole terminal.
4. Tighten the terminal screws (torque: 5 in-lbs. to 7 in-lbs. (0.56 Nm to 0.79 Nm)).
☑ The BatVtgOut voltage supply is connected.
Default setting of the relays
Relay 1 is preset to the "AutoGn" generator start function and relay 2 to the "AutoLodSoc" load
shedding function.
Summary of Contents for Sunny Island 4548-US
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